soulsync/core
Broque Thomas f976a6da53 Fix: Soulseek album-bundle downloads stuck on "failed" after slskd
finished the release (#715)

Symptom (user @pavelcreates / @IamGroot60 on 2.6.2):
- Click Download on an album in the search modal
- slskd starts + completes every track of the release
- 22+ minutes after the last completed download, batch flips
  to "failed" with no clear log line explaining why
- Per-track Soulseek downloads on the same machine were fine

Root cause: ``core/soulseek_client._resolve_downloaded_album_file``
probed three hard-coded candidate paths to locate each downloaded
file in the slskd download dir:

  candidates = [
      download_path / remote_filename,
      download_path / basename,
      download_path / *normalized_path_parts,
  ]

On the common slskd config ``directories.downloads.username = true``
slskd writes files at ``<download_dir>/<username>/<filename>`` —
none of the three candidates carry a username segment, so the
resolver returned None for every file even though the file was
physically present in a subdir one level deeper. ``_poll_album
_bundle_downloads`` saw 0 completed_paths, kept spinning, and
hit the master deadline (~30 min) before bailing the batch.

Why per-track worked: ``web_server._find_completed_file_robust``
already does a recursive walk-by-basename + path-confirm against
the remote directory components, so any layout slskd writes ends
up resolved. The bundle path didn't go through it.

Fix
- Lifted the robust finder into ``core/downloads/file_finder.py``
  as a pure function ``find_completed_audio_file(download_dir,
  api_filename, transfer_dir=None) -> (path, location)``. Zero
  globals; recursive walk; handles slskd dedup suffix
  ``_<10+digit-timestamp>``, YouTube / Tidal ``id||title`` encoded
  filenames, the AcoustID-quarantine subdir skip, basename
  collisions disambiguated by remote-path components, and a
  fuzzy-basename fallback above 0.85.
- ``_resolve_downloaded_album_file`` keeps the three-candidate
  fast path (cheap probe for the slskd-flat default) but now
  delegates to the new helper when none hit, instead of giving up.
- ``_poll_album_bundle_downloads`` tracks "slskd reports
  Completed but local resolver returns None" per key. When every
  remaining key has been in that state past a 45-second grace
  window, the poll exits early with an explicit error pointing at
  the likely ``soulseek.download_path`` mismatch instead of
  silently spinning until the master deadline.
- ``web_server._find_completed_file_robust`` becomes a thin
  delegate so both callers share one finder. Legacy inline impl
  kept as ``_find_completed_file_robust_legacy`` for reference;
  to be removed next release.
- Fixed misleading ``"(0 tracks, quality=)"`` log on the preflight-
  reuse path — was reading attrs off a None ``picked`` object.

Tests (17 new in tests/downloads/test_file_finder.py)
- Flat slskd layout
- Username-prefixed (the #715 case)
- Full remote tree preserved
- Deeply nested username + tree
- File genuinely missing returns None
- Basename collision disambiguated by remote dirs
- Single basename match wins regardless of dirs
- slskd dedup suffix match
- Short ``_<digits>`` (year) not treated as dedup
- AcoustID quarantine subdir skipped
- YouTube / Tidal ``id||title`` encoded filenames
- transfer_dir fallback
- Both dirs miss → (None, None)
- Non-audio files ignored
- Empty api_filename
- Fuzzy match on punctuation variant
- Fuzzy rejects below threshold

475 downloads tests pass after the lift.
2026-05-27 21:20:37 -07:00
..
artists Complete MusicBrainz watchlist source parity 2026-05-18 19:19:25 -07:00
automation Auto-Sync: fix LB pipelines stuck on "Refreshing:" for 5+ minutes 2026-05-27 18:04:55 -07:00
discovery Wishlist: fix three regressions causing all imports to land as track 01 with no year 2026-05-27 15:39:22 -07:00
download_engine Add module logger + surface silent exceptions in 7 logger-less files — 12 sites 2026-05-07 10:27:04 -07:00
download_plugins Address kettui-flagged items on usenet poll fix (#706) 2026-05-27 10:05:37 -07:00
downloads Fix: Soulseek album-bundle downloads stuck on "failed" after slskd 2026-05-27 21:20:37 -07:00
enrichment Surface silent exceptions across remaining modules — ~70 sites 2026-05-07 10:28:58 -07:00
imports Wishlist: fix three regressions causing all imports to land as track 01 with no year 2026-05-27 15:39:22 -07:00
library fix(musicbrainz): user-facing search recall + album-detail 404 2026-05-19 15:38:24 -07:00
matching AcoustID + quarantine modal: three bug fixes (closes #607, closes #608) 2026-05-15 08:55:06 -07:00
media_server Server playlist sync: append mode (preserve user-added tracks) 2026-05-10 22:52:11 -07:00
metadata MB rerank: prefer_known_duration is now a score boost, not a tiebreaker 2026-05-27 08:13:28 -07:00
personalized Personalized pipeline: auto-refresh stale snapshots after watchlist scan 2026-05-15 20:53:03 -07:00
playlists Auto-Sync: fix LB pipelines stuck on "Refreshing:" for 5+ minutes 2026-05-27 18:04:55 -07:00
repair_jobs Fix Picard albumartist orphan false positives 2026-05-22 08:43:57 -07:00
search feat(import): show MusicBrainz variants 2026-05-24 21:29:22 +03:00
stats Surface silent exceptions across remaining modules — ~70 sites 2026-05-07 10:28:58 -07:00
streaming Cin-6: Rename soulseek_client global → download_orchestrator 2026-05-04 23:23:32 -07:00
sync Persist Find & Add selections as permanent server-playlist match overrides 2026-05-14 09:39:24 -07:00
text Address Cin review: extract helpers, indexed pool fetch, tidy nits 2026-05-24 23:33:55 -07:00
torrent_clients fix(torrent): use before/after diff to recover qBit info-hash 2026-05-20 18:11:30 -07:00
usenet_clients Address kettui-flagged items on usenet poll fix (#706) 2026-05-27 10:05:37 -07:00
watchlist Complete MusicBrainz watchlist source parity 2026-05-18 19:19:25 -07:00
webui Extract WebUI asset helpers 2026-05-13 22:26:25 +03:00
wishlist Wishlist: harden Spotify backfill — poisoned tn=1 can't mask lean album 2026-05-27 16:47:26 -07:00
workers Final silent-exception sweep + ruff S110 lint guardrail — ~45 sites 2026-05-07 11:16:06 -07:00
acoustid_client.py Clean up 286 ruff lint errors to unblock CI and fix 10 latent bugs 2026-04-21 13:30:52 -07:00
acoustid_verification.py AcoustID + quarantine modal: three bug fixes (closes #607, closes #608) 2026-05-15 08:55:06 -07:00
album_consistency.py Surface silent exceptions across remaining modules — ~70 sites 2026-05-07 10:28:58 -07:00
amazon_client.py fix(amazon): search albums/artists and track numbers for t2tunes 2026-05-19 14:04:26 -07:00
amazon_download_client.py Amazon download client: write final size==transferred before returning file path 2026-05-16 11:09:04 -07:00
amazon_worker.py Harden Amazon worker schema migration 2026-05-18 15:47:04 -07:00
api_call_tracker.py Wire Amazon Music as a first-class download source 2026-05-16 09:40:50 -07:00
archive_pipeline.py fix(downloads): harden album bundle staging 2026-05-20 21:39:06 -07:00
artist_source_detail.py Fix MusicBrainz artist detail showing MBID as name 2026-05-19 12:34:35 -07:00
artist_source_lookup.py Add amazon_id column to artists table for full source parity 2026-05-16 17:06:54 -07:00
audiodb_client.py Add API Rate Monitor dashboard with real-time speedometer gauges 2026-04-02 10:46:43 -07:00
audiodb_worker.py AudioDB worker: stop infinite loop on direct-ID lookup failure (#553) 2026-05-11 14:18:55 -07:00
auto_import_worker.py Auto-import: fall through to other metadata sources when primary returns no match 2026-05-12 12:32:18 -07:00
automation_engine.py Wire automation engine through next_run_at + register monthly_time (PR 2/4) 2026-05-27 12:03:41 -07:00
connection_detect.py Final silent-exception sweep + ruff S110 lint guardrail — ~45 sites 2026-05-07 11:16:06 -07:00
connection_test.py Add torrent and usenet release staging support 2026-05-21 14:22:21 -07:00
database_update_worker.py Final silent-exception sweep + ruff S110 lint guardrail — ~45 sites 2026-05-07 11:16:06 -07:00
debug_info.py Fix Copy Debug Info music_source + surface missing services 2026-05-12 16:47:55 -07:00
deezer_client.py Fix Deezer contributors tagging silently dropping for cache-polluted tracks 2026-05-14 11:10:51 -07:00
deezer_download_client.py Surface silent exceptions in metadata clients — 37 sites 2026-05-07 09:33:38 -07:00
deezer_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
discogs_client.py Discogs: strip artist disambiguation suffixes at every name surface (#634) 2026-05-27 09:05:47 -07:00
discogs_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
download_orchestrator.py Fix Usenet settings reload without restart 2026-05-22 08:28:56 -07:00
genius_client.py Add API Rate Monitor dashboard with real-time speedometer gauges 2026-04-02 10:46:43 -07:00
genius_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
genre_filter.py Expand default genre whitelist from 223 to 272 genres 2026-04-18 20:32:49 -07:00
hifi_client.py Log exception when inferring HiFi manifest ext 2026-05-21 18:24:56 -07:00
hydrabase_client.py feat: add explicit badges to discography modal and artist-detail cards 2026-05-12 23:35:08 -04:00
hydrabase_worker.py Improve graceful shutdown and rollback safety 2026-04-12 15:17:18 +03:00
image_cache.py fix(lint): silence ruff B007 + S110 2026-05-20 16:18:55 -07:00
itunes_client.py feat: add explicit badges to discography modal and artist-detail cards 2026-05-12 23:35:08 -04:00
itunes_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
jellyfin_client.py Server playlist sync: append mode (preserve user-added tracks) 2026-05-10 22:52:11 -07:00
lastfm_client.py Add Last.fm Track Radio to Discover page 2026-04-14 23:41:36 -07:00
lastfm_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
library_reorganize.py Reorganize: optional embedded-tag mode (closes #592) 2026-05-15 07:56:18 -07:00
lidarr_download_client.py Surface silent exceptions across remaining modules — ~70 sites 2026-05-07 10:28:58 -07:00
listenbrainz_client.py Remove emojis from all Python log and print statements 2026-04-11 21:11:02 -07:00
listenbrainz_manager.py Auto-Sync: fix LB pipelines stuck on "Refreshing:" for 5+ minutes 2026-05-27 18:04:55 -07:00
listening_stats_worker.py Final silent-exception sweep + ruff S110 lint guardrail — ~45 sites 2026-05-07 11:16:06 -07:00
lyrics_client.py Retag now re-embeds LYRICS tag instead of leaving it empty 2026-05-14 15:52:05 -07:00
matching_engine.py Merge remote-tracking branch 'origin/dev' into refactor/media-server-engine 2026-05-05 20:36:31 -07:00
metadata_service.py Add MusicBrainz as a metadata source 2026-05-18 18:47:13 -07:00
musicbrainz_client.py Show MusicBrainz release variants in import 2026-05-24 09:33:19 -07:00
musicbrainz_search.py Branch cleanup: lift manual-match helpers, fix length-pref ordering, profile-scope view toggle 2026-05-27 07:43:21 -07:00
musicbrainz_service.py Cross-script artist aliases: include canonical name + non-strict fallback 2026-05-14 13:07:15 -07:00
musicbrainz_worker.py Alias resolution polish: lazy-fire on direct-match failure + worker backfill 2026-05-10 17:02:02 -07:00
navidrome_client.py Preserve Navidrome album cover art 2026-05-25 19:51:38 -07:00
personalized_playlists.py Add MusicBrainz as a metadata source 2026-05-18 18:47:13 -07:00
plex_client.py Server playlist sync: append mode (preserve user-added tracks) 2026-05-10 22:52:11 -07:00
prowlarr_client.py feat(settings): add Prowlarr integration as indexer aggregator 2026-05-20 14:41:54 -07:00
qobuz_client.py Fetch all Qobuz favorite tracks for discovery 2026-05-24 01:17:38 -07:00
qobuz_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
reorganize_queue.py Reorganize: optional embedded-tag mode (closes #592) 2026-05-15 07:56:18 -07:00
reorganize_runner.py Reorganize: optional embedded-tag mode (closes #592) 2026-05-15 07:56:18 -07:00
repair_worker.py fix(album-completeness): block cross-artist auto-fill 2026-05-21 16:49:12 -07:00
replaygain.py Add module logger + surface silent exceptions in 7 logger-less files — 12 sites 2026-05-07 10:27:04 -07:00
runtime_state.py Add module logger + surface silent exceptions in 7 logger-less files — 12 sites 2026-05-07 10:27:04 -07:00
seasonal_discovery.py Fix source artist detail navigation from discover modals 2026-05-18 13:50:10 -07:00
socketio_cors.py Socket.IO CORS: handle self-review nits 2026-04-26 19:24:43 -07:00
soulid_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
soulseek_client.py Fix: Soulseek album-bundle downloads stuck on "failed" after slskd 2026-05-27 21:20:37 -07:00
soulsync_client.py Surface silent exceptions across remaining modules — ~70 sites 2026-05-07 10:28:58 -07:00
soundcloud_client.py Surface engine-not-wired errors + exclude soulseek from monitor aggregation 2026-05-05 12:20:51 -07:00
spotify_client.py Add download buttons + bulk action to artist top-tracks sidebar 2026-05-07 15:44:47 -07:00
spotify_public_scraper.py Add Spotify Link tab for public playlist/album scraping without API credentials 2026-03-15 21:25:05 -07:00
spotify_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
tag_writer.py AcoustID scanner: multi-candidate match + duration guard + multi-value retag 2026-05-14 14:09:38 -07:00
tidal_client.py Your Albums: selectable wishlist modal + Tidal album resolution 2026-05-11 12:36:16 -07:00
tidal_download_client.py Handle non-JSON Tidal auth responses 2026-05-20 14:04:45 -07:00
tidal_worker.py Surface silent exceptions in workers + repair jobs — ~30 sites 2026-05-07 10:27:24 -07:00
watchlist_scanner.py Fix missing album art for non-Spotify sources + animate Downloads nav icon 2026-05-18 20:24:13 -07:00
web_scan_manager.py MS Cin-5: Drop per-server globals — engine owns the clients 2026-05-05 18:05:45 -07:00
wishlist_service.py Extract wishlist logic into dedicated package 2026-04-28 21:17:24 +03:00
worker_utils.py Repair stale media schema during refresh 2026-05-21 17:41:54 -07:00
youtube_client.py Escape dash-leading YouTube search queries 2026-05-24 08:54:47 -07:00